<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <meta name="content-type" content="text/html; charset=UTF-8">
</head>
<body>
<form enctype="multipart/form-data" method="post" action="/logoUpload">
    图片<input type="file" name="file"/>
    <input type="text" style="display: none" value="9" name="activityId"/>
    <input type="submit" value="上传" />
</form>
addactivity
</body>
</html>